package com.hgw.gulimall.product.service.impl;

import com.hgw.common.to.SkuReductionTo;
import com.hgw.common.to.SpuBoundTo;
import com.hgw.common.utils.R;
import com.hgw.gulimall.product.entity.*;
import com.hgw.gulimall.product.feign.CouponFeignService;
import com.hgw.gulimall.product.service.*;
import com.hgw.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hgw.common.utils.PageUtils;
import com.hgw.common.utils.Query;

import com.hgw.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService imagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService attrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * // TODO高级部分再来完善
     * 《保存新增商品》
     * 1. 保存spu基本信息: `pms_spu_info`
     * 2. 保存spu的描述图片: `pms_spu_info_desc`
     * 3. 保存spu的图片集: `pms_spu_images`
     * 4. 保存spu的规格参数: `pms_product_attr_value`
     * 5. 保存spu的积分信息: `gulimall_sms`数据库下的 `pms_product_attr_value`
     * 6. 保存spu对应的所有sku信息
     *    + sku的基本信息: `pms_sku_info`
     *    + sku的图片信息: `pms_sku_images`
     *    + sku的销售属性信息:  `pms_sku_sale_attr_value`
     *    + sku的优惠、满减等信息 `gulimall_sms`数据库下的
     *      + 优惠: `sms_sku_ladder`
     *      + 满减: `sms_sku_full_reduction`
     *      + 会员价: `sms_member_price`
     * @param vo
     */
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        // 1. 保存spu基本信息: `pms_spu_info`
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        // 2. 保存spu的描述图片: `pms_spu_info_desc`
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",", decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        // 3. 保存spu的图片集: `pms_spu_images`
        List<String> images = vo.getImages();
        imagesService.saveImages(infoEntity.getId(),images);

        // 4. 保存spu的规格参数: `pms_product_attr_value`
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity attrEntity = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(attrEntity.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);

        // 5. 保存spu的积分信息: `gulimall_sms`数据库下的 `pms_product_attr_value`
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }


        // 6.保存spu对应的所有sku信息
        List<Skus> skus = vo.getSkus();
        if (skus!=null && skus.size()>0) {
            skus.forEach(item->{
                // 6.1、sku的基本信息: `pms_sku_info`
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSkuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                // 6.2、sku的图片信息: `pms_sku_images`
                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity->{
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                // TODO 没有图片的路径无须保存
                skuImagesService.saveBatch(imagesEntities);

                // 6.3、sku的销售属性信息:  `pms_sku_sale_attr_value`
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(attr, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);
                    return attrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                // 6.4 sku的优惠、满减等信息 `gulimall_sms`数据库下的: 优惠: `sms_sku_ladder`;满减: `sms_sku_full_reduction`;会员价: `sms_member_price`
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() >= 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0"))==1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }

    }

    /**
     * 保存spu基本信息: `pms_spu_info`
     * @param spuInfoEntity
     */
    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String  key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and(w->{
               w.eq("id", key).or().like("spu_name", key);
            });
        }
        String  status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            wrapper.eq("publish_status", status);
        }
        String  brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }
        String  catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq("catalog_id", catelogId);
        }

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

}